Machine for operating on filler pieces for shoes



Nov. 20, 1928. 1,692,259

G. H. HEYS MACHINE FOR OPERATING ON FILLER PIECES FOR SHOES Filed Aug. 17, 1923 Fig.1.

/NZ/E/V TOR Patented Nov. 1923.

UNITED STATES resazse PATENT QFFICE.

GEORGE E. HEYS, OF LYNN, MASSACHUSETTS, ASSIG-NOR- TO UNXTED SHOE MA- CHINERY CORPORATION, OF PATEEt-SO N, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR GIPERATING ON FILLER PIECES FOR SHOES.

Application filed August 17, 1923. Serial No, 657,935.

The present invention relates to boots and shoes and in particular to the manufacture of fillers or filler pieces such as are used in certain types of shoes to provide an inside tread surface adapted to conform to the more prominent projections and depressions of the sole of the foot to insure that the pressure caused by the weight of the body will be distributed uniformly over those parts of the foot which should properly sustainit.

The use of fillers or filler pieces for this purpose is disclosed in United States Patent No. 1,120,489, to Matthew l-lilgert, dated Dec. 8, 1914, in which there is described a process of manufacturing shoes which can be practised on a large scale with the use of modern shoemaking machinery, and which is adapted to produce shoes that will fit the feet more accurately and will be more comfortable than the usual factory-made shoes. In manufacturing filler pieces of the character referred to in said patent, it has been customary to make first a foot-shaped form or last of a desired foot size, the last having a bottom face corresponding in surface contour to that of the sole of an average normal foot of said size. Next a filler piece blank having the desired marginal shape is made to conform in surface contour to that of the bottom face of the foot last, either by applying the blank directly to the bottom of the foot last while the blank is in a moistened or tempered state and allowing it to remain upon the last until dry, or by shaping the blank between a pair of molds one of which has the contour and dimensions of the bottom of the foot last and the other of which has the contour and dimensions of the bottom of a last upon which the shoe is to be made. The practice of this method of making); filler pieces necessarily requires the provision of a different foot last and a different filler piece die for each size. width and style of shoe to be manufactured. hen production of shoes in any substantial quantity is contemplated, molds are'provided for shaping the filler pieces and a different pair of co-operating molds is re uired for each size, width and style of shoe to be made. The molds are costly and the manufacture of the filler pieces, and consequently the manufacture of shoes provided therewith, has necessarily been expensive heretofore.

One abject of the present invention tr;

reduce the cost of manufacture of filler pieces of the above described general character and to enable shoes provided with such filler pieces to be produced in quantity under the usual shoe factory conditions so that they may be sold at a more moderate price than has heretofore been possible.

In carrying out this object, advantage is taken of the fact that such variations in the marginal contour of the filler pieces as are necessary to adapt them for use in shoes of different styles, occur principally in the toe and forepart portions of the filler pieces, i. e., in those portions which are forward of the ball line. Advantage is also taken of the fact that variations over a large range of sizes at the heel ends of the filler pieces are small and accordingly it is practicable to make filler pieces with rear portions having initially such marginal contour as is ultimately re quired for a number of different sizes and widths of shoes. It is practicable, also, to make these filler pieces with foreparts having such form and dimensions as to allow for various changes of marginal contour such as may be required for use in shoes of widely different styles and to adapt the filler pieces for use in shoes of any particular style by subsequently shaping the margins of the foreparts of the filler pieces by trimming operations. I

In accordance with one feature of the present inventiomtherefore, means has been provided for supporting a filler piece and relatively movingand guiding the filler piece and a stock trimming device to cause the latter to trim the toe and forepart of the filler piece without trimming any of the remaining portions of the filler piece. above used and as hereinafter employed in the appended claims is intended to include operations of any character whereby the final shape of the filler piece is produced by the removal of stock from the partiallycompleted article. Preferably the portion of the filler piece above referred to as the forepart or toe and forepart willinclude the entire portion which is forward of the ball line while The term trim as what has been above referred to as the rear portion of thefiller piece will include the entire portion at the rear of the ball line.

Preferably also, and as illustrated, a sole rouu din :inaehine is employed perform the I shaping or trimming of the forepartof the filler piece for the purpose of determining its ultimate marginal contour. In the rounding operation, the marginal contour of the foregart of the filler piece is determined, as herein illustrated, by pattern which is larger throughout its middle and rear portion than the corresponding shank and heel portion of the filler piece and i s adapted to overlap said JllkI-l'lk and heel portion to prevent cutting of this part of the tiller piece by the trimming knife, but whichhas marginal contour at the forepart in accordance with the particular style of filter piece to be produced, so that it willguide the trinmiing knife in the usual manner during its trimming movement around said forepart. The provision of a pattern shaped to guide a cutter around the forepart of a filler piece to trim the same and to prevent the cutter from trimming the rest of the filer piece is considered to be an important feature of the invention.

By the employment of the herein described apparatus whereby a filler piece is preliminarily formed with its forepart shaped to allow for variations in style and is subsequently trimmed in accordance with the particular style desired, it willbe obvious th at only a comparatively small number of molds will be required in the manufacture of filler pieces for shoes of a wide variety of styles, it being unnecessary in any case to use a greater number of molds than there are different sizes and widths of shoes to be made. In practice fewer molds will be used than the actual number of sizes and widths of the filler pieces. For example, it has been found entirely practicable to make molds only for the full sizes and for the widths most commonly called for and to produce the half sizes and Widths less comn'mniy demanded by trimming down filer pieces made from larger molds. in carrying out this idea, a set of from twelve to eighteen molds has proved to be suflicient to provide satisfactorily for the entire range of variations in the sizes and widths of the filler pieces. By varying the shape of the patterns which serve as guides for the trimming of the toreparts of the filler pieces and trimming the tiller pieces in accordance with these patterns, the desired variations in style may be secured without the necessity of employing additional molds. Thus, to manufacture a line of filler pieces comprising a complete range of sizes and widths and a predetermined number of dillerent styles it is only necessary to employ a set of approximately eighteen molds and to provide appropriate patterns for use in trimming the filler pieces made by these molds, whereas if no subsequent trimming operations are to be performed, a set of perhaps several hundred molds would be required to produce the same number of variations in size, width and style of filler pieces. The patterns are preferably made of Wood and may readily be shaped by means of a saw. Thus it will be seen that the cost of making patterns of this character is very small compared to the cost of making molds. Obviously therefore the use of the patterns greatly reduces the cost of manufacturing the filler pieces. l urthermore, whenever it is desired to make changes in the styles of a line of filler pieces which are being manufactured, it is only necessary in accordance with the present invention to provide a new set of patterns shaped in accordance with the styles required. The making of a set of patterns is a very simple operation compared to the making of a set of molds and the patterns can be made much more quickly than the molds. Consequently, a considerable saving of time may be eliected.

Further objects and features of the invention will be apparent from the following description of the method contemplated by the present invention and of the preferred means illustrated. in the accompanying drawings for practicing said method.

In the drawings,

Fig. 1 is a view, in front elevation, of so much of a sole rounding machine as is necessary to illustrate the application thereto of such devices as are preferably employed for eliecting the trimming of the forepart of the filler piece;

2 is a perspective view showing a filler piece interposed between a pattern and a cooperating clamp which embody certain features of the present invention, and a rounding knife for trimming the forepartof the filler piece;

Figs. 3 and a are plan views of the clamp and the pattern, respectively;

Fig. 5 is a plan view showing a filler piece before it has been trimmed to correspond to the outline of a selected pattern;

Fig. 6 is a view, in vertical longitudinal section, of the clamp and the clamp carrier; and

Fi 'l' is a detail sectional view taken substantially along the line 7-7 of Fig. 6.

Referring first to Figs. 2 and 5 of the drawings, the filler piece 8 therein shown has been preliminarily formed so that the portion at the rear of the ball line (indicated at 10 in Fig. has both the surface contour and marginal outline which is required for the finished product, while the spa t, or that port-ion of the filler piece which is ljorward of the ball line 10, is substantially flat and of such marginal contour as to allow for variations in the style of the liller piece, or, in other words, the forepart is made of such dimensions that its margin may be subsequently trimmed in accordance with patterns of different styles.

The trimming of the forepart of the tiller piece is preferably accomplished by a rounding operation which ntaav be performed by means of a rounding machine such as that illustrated in part in Fig. 1, this machine being provided with certain parts especially constructed to locate and clamp the filler piece in position to be operated upon and to guide the rounding knife so that it will operate only upon that portion of the filler piece which is forward of the ball line and thus will impart the desired marginal contour to the forepart without modifying in any degree the marginal contour of the rest of the filler piece. The means for guiding the rounding knife consists of a pattern 12 which is horizontally disposed and serves to support the filler piece while it is being trimmed. The filler piece is positioned longitudinally with respect to the pattern 12 in position to be operated upon by means of a pair of locating pins 14 which are provided at the rear of the pattern. After being located properly with respect to the pattern 12, the forepart of the filler piece is securely held against the pattern by means of a clamp 16 carried by a clamp carrier 18 pivotally secured to the lower end of a slide 20 that is mounted for vertical re- 1. ciprocation in an overhanging portion 22 of the machine frame. The slide 20 is connected to the forward end of an actuating lever (not shown) and is adapted to be actuated in the usual manner to cause the clamp 16 to be lowered into engagement with the work and to clamp the work against the pattern 12. A rounding knife is shown at 2a in Fig. 2, the knife being mounted upon a suitable knife carrier and actuated in the usual manner to cause it to travel around the pattern.

The pattern 12 consists of a flat plate which may be of the shape best shown in Fig. 4:. In this figure, a line 26 has been drawn transversely across the pattern at the rear of the forepart, this line bearing the same relation to the pattern as the ball line 10 bears to the filler piece 8. The portion of the pattern 12 which is forward of the line 26 and which will hereinafter be referred to as the forepart of the pattern is necessarily somewhat smaller than the forepart of the filler piece for which it is designed to be used so that it may be superposed upon the filler piece and utilized to guide the trimming knife. The margin of the pattern is shaped in accordance with the style of the toe and. forepart of the shoe for which the filler piece is being made so that when the forepart of the filler piece has been trimmed to conform to the pattern, it will then be adapted to fit properly within the shoe. At the rear of the line 26, the pattern is larger than the filler piece so that its margin will project beyond the edge of the filler piece to hold the trimming knife out of engagement therewith and thus to prevent it from trimming this portion of the filler piece. The pattern functions to support the filler piece during the trimming operation and in order that it may accomplish this purpose, it

is stationarilymounted upon two supporting posts 30 having reduced upper extremities adapted to enter apertures 32 (Fig. 4) in the pattern. The posts 30 may be rigidly mounted upon a frame or standard (not shown) with provision for adjustment toward and from each other to adapt them to support patterns of different sizes.

It is desirable that the filler piece shall be located relatively to the pattern so that the knife, as it travels around the edge of the pattern, will begin to trim the filler piece eX actly at the point where the ball line intersects the margin at one side of the filler piece and will finish trimming exactly at the point where the ball line intersects the margin at the other side of the filler piece. To facilitate locating the filler piece upon the pattern in this manner, the locating pins 14; are provided, these pins projecting perpendicularly from the face of the pattern at the heel end thereof and being located so as to engage the edge of the filler piece at opposite sides of a median line extending through the heel end thereof. The pins 14 are so located as to position the filler piece longitudinally in proper position with respect to the pattern. The filler piece is to be located trans verselywith respect to the pattern by a manual operation, the operator using his fingers to bring the edge portions of the filler piece at opposite ends of the ball line 10 into vertical alinement with the corresponding portions of the edge of the pattern at opposite ends of the line 26. When properly located in the abovedescribed manner, the filler piece will be so positioned with respect to the pattern that the trimming operation will commence at the point designated 34 in Fig. 5 and will terminate at the point designated 36 in said figure. The pattern is capable of being moved from the supporting posts 30 by merely lifting it to disengage the reduced upper ends of the posts from the apertures 32 in the pattern, after which the pattern may then be reversed and replaced upon the supporting posts. The locating pins 14 extend through the pattern and project at either side thereof so that they are capable of performing their locating function which ever side of the pattern is uppermost, portions of the pins at one side of the pattern serving to locate a filler piece for a right shoe, while the portions of the pins at the opposite side of the pattern serve to locate a filler piece for a left shoe.

The clamp 16 which holds the filler piece against the pattern consists of a flat plate which corresponds in shape to that of the forepart of the pattern, but which is slightly smaller than said forepart so that its edge will not have to be accurately alined with the corresponding edge of the pattern. The clamp 16 is provided with a pair of holes 38 which are adapted to receive pins 40 which which will permit tilting adjustably of project below a block 42 that is interposed between the clamp 16 and the clamp carrier 18 and is adjust-ably secured to the latter as will hereinafter appear. Clamps of various sizes and styles are provided to correspond with the sizes and styles of the patterns em ployed. The holes 38, however, are preferably spaced apart the same distance in the various sizes of clamps unless the clamps are two small to permit of such an arrangement being made.

The clamp carrier 18 comprises a substan tially rectangular hollow frame having elongated upper and lower horizontal walls which. are connected by short vertical walls l6 at the ends and at the rear side of the carrier frame. The front side of the carrier frame is open as shown at as in dig. 7. Rising from the upper wall of the clamp carrier is a vertical tongue which is received in a transverse slot in the lower end of the slide 20. The clamp carrier 18 is pivoted to the slide 20 by means of a horizontal pin which extends transversely throu ii the tongue and through the forked lower ml of the slide 20. The clamp carrier 18 may be i'naintained in a fixed position relatively to the slide 20 upon which it is pivoted by any suitable means the clamp carrier 18 and the clamp 42. As shown, a pair of pins 54 (Figs. 6 and 7) are supported in vertical sockets which are formed at opposite sides of the pivot pin in the tongue 50 with the upper ends of the pins engaging the top wall of the slot in the lower end of the slide 20. he lower coneshaped ends of the pins 54: are engaged by similarly shaped ends of adjusting screws 56 which are disposed perpendicularly to the pins 5 1 and are threaded into the clamp carrier frame from the rear side thereof. The screws 56 may be manipulated to release the carrier frame to permit tilting adjustment of the latter and to bind the carrier frame in adjusted position,

The block 12 serves to space the clamp 16 from the clamp carrier 18 and is adjnstably secured to the carrier 18 by means of a stud 58 and a nut 60, which centers the lower end of the stud 58, is fixed in the block 42 and the upper portion of the stud extends through a horizontally elongated slot in the lower wall of the clamp carrier frame and the nut 60 engages the upper face of said wall at opposite sides of the slot. The pin 10 extends freely through a slot in the block 42 and its upper portion extends freely through the slot 62 in the carrier frame. A collar 6% on the pin 4:0 is arranged to engage the lower face of the clamp carrier 18 at opposite sides of the slot 62 while a nut 68 at the upper extremity of the pin 40 engages above the lower wall of the clamp carrier, the collar 66 and nut 68 cooperating to clamp the pin so in adjusted position in the slot 62. A pin 70 ex tends transversely through the stud t0 and projects into the slot 62 to prevent the pin 10 from turning in the slot and thus to enable the nut 68 to be tightened to hold the stud 4:0 in adjusted position. The clamp 16 may be adjusted lengthwise of the pattern 12 by loosening the nuts 60 and 68 and shifting the studs 58 and 40 in the slot 62. The stud 40 may be adjusted relatively to the stud 58 in the slot 62 to take up for wear in the holes 38 in the clamp 16 to insure that the clamp will be firmly gripped by the stud e0. This relative adjustment of the studs 40 enables them to be located closer together tov adapt them for engagement with the holes 38 in small sized clamps 16 in case it might be found desirable or necessary to locate said holes nearer each other than indicated in the drawings.

The filler piece is preferably built up from separate sections of suitable sheet material such as impregnated felt, cork insoling, or the like. As heretofore stated, a main section may be employed which extends through the length and width of the filler piece and may be composed of one or more layers of sheet material. A concave heel seat portion may be superposed over the heel end of the main section or interposed between the layers of said section. A balance piece may be associated with the shank and forepart of the main section to correct the tendency of the foot to roll outwardly. The building up of the filler piece from separate sections in this manner does not constitute a part of the present invention and accordingly has not been illustrated in the drawings. The filler piece blank thus produced is placed in a mold wherein it is shaped so that its lower side will conform to the surface contour of the interior of the shoe to which it is to be applied, while its upper face will conform to the foot of the wearer of the shoe. After being molded, the

filler pieces have the ultimately desired marginal and surface contour at the rear of the ball line, but forward of the ball line the dimensions and marginal contour of the filler piece are such as to make allowance for a wide range of variations in style.

The molded filler piece is then ready to have its forepart trimmed in accordance with the style of the for part of the shoe in which it is to be inserted. In trimming the filler piece with the use of the pattern hereinbefore described, the filler piece is placed on the pattern with its margin at the rear of the heel portion in engagement with the pins 14, 14, these pins serving to locate the filler longitudinally with respect to the pattern in position for the trimming operation. in plan ing the filler piece upon the pattern, the filler piece may conveniently be held between a finger and the thumb of one hand. the finger engaging the edge of the filler piece at one end of the ball line and the thumb engaging the ed e at the opposite end of the ball line.

After the heel portion of the filler piece has been properly brought into engagement with the pins 14, the thumb and finger, by which the forepart of the filler piece is held, will readily engage the opposite edges of the pattern and may be utilized to aline the edge portions of the filler piece at opposite ends of the ball line with the corresponding edge portions of the pattern and thus transversely to locate the forepart of the filler piece relatively to the pattern in position for the trimming operation.

The clamp 16 is then depressed into engagement with the filler piece to clamp the latter against the pattern and will hold the filler piece securely while it is being trimmed. The trimming knife 24 is set in motion in a manner usual in sole rounding machines, the knife moving forwardly from the position in which it is shown in Fig. 2 and being guided by the pattern. As the knife intersects the vertical plane of the ball line of the filler piece, it encounters a portion of the margin of the filler piece which projects beyond the edge of the pattern and the knife then begins to trim off this projecting portion of the filler piece. The trimming continues around the forepart and toe of the filler piece until theknife reaches that portion of the edge thereof which is adjacent to the opposite end of the ball line. At this point, the margin of the filler piece ceases to project outwardly beyond the edge of the pattern and when the trimming operation has been finished, the forepart of the filler piece has been trimmed in accordance with the shape of the patern. During. the remainder of the rounding movement of the a portion at one end only of the filler piece,

and means for moving said device entirely around the filler piece.

2. In a machine for operating upon filler pieces for shoes, a stock trimming device, and means for supporting a filler piece and relatively moving and guiding the filler piece and said device to cause the latter to trim the toe and forepart of the filler piece without trimming any of the remaining portion of the filler piece. 7

3. In a machine for operating upon filler pieces for shoes, a cutter, and means for supporting a filler piece and for moving and guiding the cutter to trim the toe and forepart only of the filler piece.

4. In a machine for operating upon filler pieces for shoes, a cutter, and means for supporting a filler piece and for moving and guiding the cutter to trim that portion only of the filler piece which is forward of the ball line.

v 5. In a device for operating upon filler pieces for shoes, a trimming knife, and means for relatively moving the knife and a filler piece to cause the knife to trim the forepart of the filler piece without trimming any other portion thereof.

6. A device for operating upon filler pieces for shoes comprising a trimming knife, and

a pattern for supporting a filler piece and for guiding the knife to enable it to trim the margin of the filler piece forward of the ball line Without trimming any other portion of the filler piece. 7

7. A device for operating upon filler pieces for shoes comprising a trimming knife, a pattern for supporting a filler piece and for guiding the knife to enable it to trim the margin of the filler piece forward of the ball line without trimming any other portion of the filler piece, and means for operating the trimming knife. I

8. In a device for operating upon filler pieces for shoes, a pattern adapted to engage one face of a filler piece and to be positioned relatively thereto with the portion of the filler piece forward of the ball line projecting beyond the margin of the corresponding portion of the pattern and with the rest of the pattern projecting beyond the portion of the filler piece at the rear of the ball line, and a trimming knife adapted to be moved around the pattern to trim the projecting portion of the filler piece. I

9. In a machine for operating upon filler pieces for shoes, a pattern adapted to engage one face of a filler piece and to be positioned relatively thereto with the portion of the filler piece forward of the ball line projecting beyond the margin of the corresponding portion of the pattern and with the rest of the pattern projecting beyond the portion of the filler piece at the rear of the ball line, means for locating the filler piece relatively to the pattern, a trimming knife, and means for moving the knife around the pattern to trim the projecting portion of the filler piece.

10. In a machine for operating upon filler pieces for shoes, a support for a filler piece, a cutter, means for moving the cutter around the filler piece, and means on thesupport for engaging and guiding the cutter to cause it to trim the forepart' of the filler piece to a pre determined contour to prevent it from trimming the remaining portion thereof.

11. In a machine for operatingvupon filler pieces for shoes, a trimming knife having an orbital path of movement, means for moving the knife, means for supporting the 'filler piece in the plane of movement of the knife and for guiding the knife to cause it to trim the portion of the filler piece forward of the ball line and to prevent the knife from trimming the portion of the filler piece rearward of the ball line.

12. In a machine for operating upon filler pieces for shoes, a trimming knife, a pattern having a marginal contour shaped to guide the trimming knife to enable it to trim the forepart of a filler piece and to prevent it from engaging the shank and heel portions of the filler piece, means for holding the filler piece against the pattern, and means for moving the knife around the pattern to effect the trimming operation.

13. In a machine for operating upon fil er pieces having a molded surface contour rearward of the ball line, a flat forepart for -ard of the ball line, a pattern for supporting the filler piece and determining the marginal contour of the forepart, the pattern being shaped to overlap the portion of the filler piece rearward of the ball line, a clamp for engaging only the forepart of the filler piece to hold it against the pattern, a trimming knife, and means for moving the knife around the pattern to trim the forepart of the filler piece.

14. In a machine for operating upon filler pieces for shoes, a pattern having a forepart of the size and shape desired for that portion of a filler piece which is forward of the bail line, and having a rear part adapted to project outwardly beyond the filler piece throughout the length of its margin rearward of the ball line, and means for engaging the margin of the filler piece to locate the tiller piece relatively to the pattern for the trimming operation.

15. In a machine for operating upon tiller pieces for shoes, a pattern having a forepart of the size and shape desired for that portion of a filler piece which is forward of the ball line, and having a rear part adapted to project outwardly beyond the filler piece throughout the length of its margin rearward of the ball line, and projections on the pattern for engaging the margin of the filler piece at the heel end thereof to locate the tiller piece relatively to the pattern for the trimming operation.

16. In a machine for operating upon filler ieces for shoes a attern havin a fore art of the size and shape desired for that portion of a filler piece which is forward of the ball line, and having a rear part adapted to pr0- ject outwardly beyond the filler piece throughout the length of its margin rearward of the ball line, means carried at each side of the pattern for engaging the margin of the filler piece at the heel end thereof to locate the filler piece relatively to the pattern for the trimming operation, means for supporting the pattern in horizontal position, detachable interengaging securing means on the pattern and the pattern supporting means constructed and arranged to permit the platform to be secured to the support with either side uppermost to adapt itfor use with filler pieces for right and left shoes, and clamp for securing the filler piece to the pattern.

17 In a machine for operating upon filler pieces for shoes, a pattern having a forepart of the size and shape desired for that portion of a filler piece which is forward of the ball line, and having a rear part adapted to project outwardly beyond the filler piece throughout the length of its margin rearward of the ball line, said pattern having a hole extending therethrough at both forepart and heel end thereof, means for detachably and rigidly supporting the pattern with either side uppermost by engagement with said holes, a pair of pins carried by the pattern for engaging the margin of the filler piece at the heel end thereof to locate the filler piece relatively to the pattern for the trimming operation, and a clamp for securing the filler piece to the pattern, said pins extending through the pattern and projecting beyond each side thereof.

18. In a machine for operating upon filler pieces for shoes, a trimming knife, a pattern having a marginal contour shaped to guide the trimming knife to enable it to trim the forepart of a filler piece and to prevent it from engaging the shank and heel portions of the filler piece, a clamp comprising a plate shaped to engage the exposed face of the filler piece forward of the ball line only, and means for detachably supporting said clamp and for moving it into and out of clamping engagement with the filler piece.

19. For use in trimming filler pieces for shoes, a pattern shaped to guide a cutter around the toe and forepart of a filler piece to trim the same and to hold the cutter away from the shank and heel of the filler piece to prevent the shank and heel portions from being trimmed as the cutter travels around them.

90. For use in trimming filler pieces for shoes, a pattern shaped to guide a cutter around the toe and forepart of a filler piece to trim the same and to hold the cutter away from the rest of the filler piece, said pattern having work-engaging means for relatively locating the filler piece and pattern for the trimming operation.

21. For use in trimming filler pieces for shoes, a pattern having its margin shaped at the :t'orepart thereof to guide a knife around the forepart of a filler piece to trim the same, and having the remainder of its margin shaped to guide the trimming knife around the remainder of the filler piece without engaging the latter.

22. For use in trinnning filler pieces for shoes, a pattern having its forepart smaller and lts rear part larger than the respective portions of a filler piece with which it is de-.

signed to be used whereby it Will function to guide a trimming knife around the filler piece in engagement with the forepart there of to trim the same but out of engagement With the rear portion of the filler piece.

23. A device for use in trimming filler pieces for shoes comprising a pattern shaped to guide a knife around the forepart ot' a filler piece and to prevent the knife from cutting around the rest oi the tiller piece, and projections carried by the pattern for engaging the margin of the filler piece at the heel end thereof to locate the filler piece relatively to the pattern for the trimming operation.

24. For use in trimming filler pieces for shoes, a pattern comprising a flat plate having a marginal ed 'e shaped to determine the outline of the toe and torepart of a filler piece for a right shoe placed against one side of the pattern and of the corresponding portion of a filler piece for a left shoe placed against the opposite side of the pattern, and projections upon each side of the pattern for locating a filler piece relatively to the pattern in position to be trimmed.

25. For use in trimming filler pieces for shoes, a pattern comprising a flat plate having a marginal edge shaped to determine the outline of" the toe and forepart of a filler piece for a right shoe placed against one side of the pattern and of the corresponding portion of a filler piece for a left shoe placed against the opposite side of the pattern, a pair of pins extending through the heel end of the pattern at opposite sides of the medial line thereof and projecting beyond one sidei'ace of the pattern to engage the margin at the heel end of a filler piece for a right shoe and beyond the opposite side race of the-pattern to engage the margin at the heel end of a filler piece for a left shoe to locate said filler pieces relatively to the pattern in position to be trimmed.

In testimony whereof I have signed my name to this specification.

GEORGE H. HEYS. 

